Pulley for heat exchanger internal support plate

Abstract

The utility model provides a kind of pulley for heat exchanger internal support plate, belong to heat exchanger support plate technical field.Solve the prior art, the edge of support plate and the inner wall of shell are directly contacted and produce sliding friction, which leads to low operating efficiency and causes scratches on the inner wall of shell, even permanent damage.The utility model discloses a plurality of slides, the plurality of slides are circumferentially arranged at the edge of support plate, the inner side of slide is connected with the edge of support plate, the outer side of slide is rotatably connected with roller, and the roller is rolling fit between the inner wall of heat exchanger shell.It is mainly used for the assembly of support plate during the manufacture and repair of heat exchanger.

Description

Technical Field

[0001] This utility model belongs to the technical field of heat exchanger support plates, and in particular relates to a pulley for an internal support plate of a heat exchanger. Background Technology

[0002] During the manufacturing and maintenance of shell-and-shell heat exchangers, the tube bundle and support plate must be assembled and then inserted into or removed from the heat exchanger shell as a whole. However, in existing technologies, sliding friction occurs between the edge of the support plate and the inner wall of the shell due to direct contact. This friction process not only increases the resistance during tube bundle assembly or shell removal, resulting in low operating efficiency, but also causes scratches or even permanent damage to the inner wall of the shell, significantly shortening the service life of the heat exchanger. Utility Model Content

[0003] In view of this, the present invention aims to provide a pulley for the internal support plate of a heat exchanger, so as to solve the problem in the prior art that the sliding friction caused by the direct contact between the edge of the support plate and the inner wall of the shell leads to low operating efficiency and causes scratches or even permanent damage to the inner wall of the shell.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a pulley for an internal support plate of a heat exchanger, comprising multiple sliding plates, which are arranged circumferentially at the edge of the support plate. The inner side of the sliding plate is connected to the edge of the support plate, and a roller is rotatably connected to the outer side of the sliding plate. The roller is in rolling engagement with the inner wall of the heat exchanger shell.

[0005] Furthermore, the roller has a dumbbell-shaped structure, comprising rollers at both ends and a roller connecting shaft in the middle, with the rollers at both ends respectively disposed on both sides of the skateboard.

[0006] Furthermore, the outer side of the skateboard has a groove, and the roller connecting shaft is rotatably embedded in the groove.

[0007] Furthermore, a pad is provided at the opening of the groove, the pad is connected to the slide plate, and the roller connecting shaft is rotatably disposed between the groove and the pad.

[0008] Furthermore, the connection between the pad and the slide plate is welding.

[0009] Furthermore, the connection between the skateboard and the support plate is welding.

[0010] Furthermore, all four corners of the roller are rounded.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a pulley for the internal support plate of a heat exchanger. Rollers are set at the edges around the support plate. Rolling friction is used between the rollers and the inner wall of the heat exchanger shell to replace the original sliding friction. This effectively reduces the resistance when installing or removing the tube bundle, making the assembly and maintenance process more labor-saving and efficient, shortening the operation time, and avoiding local scratches or wear caused by traditional sliding friction. This ensures the integrity of the inner wall of the heat exchanger shell and significantly extends the service life of the heat exchanger. Attached Figure Description

[0012] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0013] Figure 1 This is a schematic diagram of the structure of a pulley for an internal support plate of a heat exchanger according to the present invention;

[0014] Figure 2 This is a cross-sectional schematic diagram of a pulley structure for an internal support plate of a heat exchanger according to the present invention;

[0015] Figure 3 This is a side view of a pulley structure for an internal support plate of a heat exchanger according to the present invention.

[0016] 1-Slide plate, 2-Roller, 3-Padded block, 4-Support plate, 5-Heat exchanger shell. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other, and the described embodiments are only some embodiments of the present invention, not all embodiments.

[0018] See Figure 1-3This embodiment describes a pulley system for an internal support plate of a heat exchanger. The pulley system includes multiple sliding plates 1, which are circumferentially positioned along the edge of a support plate 4. The inner side of each sliding plate 1 is connected to the edge of the support plate 4, and a roller 2 is rotatably connected to the outer side of each sliding plate 1. The roller 2 engages with the inner wall of the heat exchanger shell 5 through rolling friction. In this embodiment, the roller 2 is positioned around the edges of the support plate 4. The rolling friction between the roller 2 and the inner wall of the heat exchanger shell 5 replaces the original sliding friction, effectively reducing resistance during tube assembly or shell removal. This makes assembly and maintenance more labor-saving and efficient, shortens operation time, and avoids localized scratches or wear caused by traditional sliding friction, ensuring the integrity of the inner wall of the heat exchanger shell 5 and significantly extending the service life of the heat exchanger.

[0019] In this embodiment, the roller 2 has a dumbbell-shaped structure. The roller 2 includes rollers at both ends and a roller connecting shaft in the middle. The rollers at both ends are respectively set on both sides of the skateboard 1. The roller connecting shaft is used for connection with the skateboard 1. In this embodiment, the bottom of the roller protrudes 1-2mm from the edge of the support plate 4.

[0020] In this embodiment, the outer side of the slide plate 1 is provided with a groove, the roller connecting shaft is rotatably embedded in the groove, and a pad 3 is provided at the opening of the groove. The pad 3 is connected to the slide plate 1, and the roller connecting shaft is rotatably disposed between the groove and the pad 3. The pad 3 is used to limit the roller connecting shaft in the groove to prevent the roller connecting shaft from moving and detaching from the groove.

[0021] In this embodiment, the connection between the pad 3 and the slide plate 1 is welding.

[0022] In this embodiment, the connection between the sliding plate 1 and the support plate 4 is welding.

[0023] In this embodiment, the four corners of the rolling wheel are rounded, which makes the edges of the rolling wheel transition smoothly, avoids the right-angled edges from scratching the inner wall of the shell, and reduces local frictional resistance, making the rolling process smoother.

[0024] During assembly, multiple sliding plates 1 and rollers 2 are welded and fixed to the edge of the support plate 4, and then the whole assembly is placed into the heat exchanger shell 5. When the tube bundle and support plate 4 need to be removed or installed into the shell, the rollers 2 contact and roll with the inner wall of the heat exchanger shell 5, converting the original sliding friction into rolling friction. This avoids local scratches or wear caused by traditional sliding friction, ensures the integrity of the inner wall of the heat exchanger shell 5, and significantly extends the service life of the heat exchanger.

[0025] The embodiments of the present invention disclosed above are merely illustrative of the present invention. The embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific implementations described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention.

Claims

1. A pulley for an internal support plate of a heat exchanger, characterized in that: It includes multiple slide plates (1) arranged circumferentially at the edge of the support plate (4), the inner side of the slide plate (1) is connected to the edge of the support plate (4), and the outer side of the slide plate (1) is rotatably connected to a roller (2), which rolls with the inner wall of the heat exchanger housing (5).

2. The pulley for the internal support plate of a heat exchanger according to claim 1, characterized in that: The roller (2) has a dumbbell-shaped structure. The roller (2) includes rollers at both ends and a roller connecting shaft in the middle. The rollers at both ends are respectively set on both sides of the skateboard (1).

3. The pulley for the internal support plate of a heat exchanger according to claim 2, characterized in that: The outer side of the slide plate (1) is provided with a groove, and the roller connecting shaft is rotatably embedded in the groove.

4. The pulley for the internal support plate of a heat exchanger according to claim 3, characterized in that: A pad (3) is provided at the opening of the groove. The pad (3) is connected to the slide plate (1). The roller connecting shaft is rotatably disposed between the groove and the pad (3).

5. A pulley for an internal support plate of a heat exchanger according to claim 4, characterized in that: The connection between the pad (3) and the slide plate (1) is by welding.

6. The pulley for the internal support plate of a heat exchanger according to claim 1, characterized in that: The connection between the slide plate (1) and the support plate (4) is by welding.

7. A pulley for an internal support plate of a heat exchanger according to claim 2, characterized in that: The four corners of the rolling wheel are all rounded.

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